<template>
    <Panel-head :route="route"/>
    <div class="btns">
        <el-button :icon="Plus" type="primary" @click="open(null)" size="small">新增</el-button>
    </div>
    <el-table :data="tableData.list" style="width: 100%">
        <el-table-column prop="id" label="id" />
        <el-table-column prop="name" label="昵称" />
        <el-table-column prop="permissionName" label="菜单权限" width="500px"/>
        <el-table-column label="操作">
        <template #default="scope">
            <el-button type="primary" @click="open(scope.row)">编辑</el-button>
        </template>
        </el-table-column>
    </el-table>
    <div class="pagination-info">
        <!-- 分页 -->
        <el-pagination
           v-model:current-page="paginationData.pageNum"
           :page-size="paginationData.pageSize"
           :background="false"
           size="small"
           layout="total, prev, pager, next"
           :total="tableData.total"
           @size-change="handleSizeChange"
           @current-change="handleCurrentChange"
           />
    </div>
    <el-dialog 
    v-model="dialogFromVisable"
    :before-close="beforeClose"
    title="添加权限"
    width="500"
    >
     <el-form
     ref="formRef"
     label-width="100px"
     label-position="left"
     :model="form"
     :rules="rules"
     >
     <el-form-item v-show="false" prop="id">
          <el-input v-model="form.id"/>
       </el-form-item>
       <el-form-item label="名称" prop="name">
          <el-input v-model="form.name" placeholder="请填写权限名称"/>
       </el-form-item>
       <el-form-item label="权限" prop="permissions">
          <el-tree
            ref="treeRef" 
            style="max-width:600px;"
            :data="permissionData"
            node-key="id"
            show-checkbox
            :default-checked-keys="defaultKeys"
            :default-expanded-keys="[2]"
            />

           
       </el-form-item>
     </el-form>
     <template #footer>
        <div class="dialog-footer">
            <el-button type="primary" @click="confirm(formRef)">确认</el-button>
        </div>
    </template>
    </el-dialog>
</template>
<script setup>
import { ref ,reactive ,onMounted, nextTick} from 'vue'
import { userGetMenu,userSetMenu,menuList } from '../../../api'
import { Plus } from '@element-plus/icons-vue'
import { useRoute } from 'vue-router'

const route = useRoute()

onMounted(()=>{
    //菜单数据
    userGetMenu().then(({data}) =>{
        console.log(data)
        permissionData.value = data.data
    })
    getListData()

})

//列表数据
const tableData = reactive({
    list:[],
    total:0
})


//打开弹窗
const open = (rowData = {}) =>{
    dialogFromVisable.value = true
    //弹窗打开form生成是异步的
    nextTick(()=>{
        if(rowData){
            Object.assign(form,{id:rowData.id,name:rowData.name})
            treeRef.value.setCheckedKeys(rowData.permission)
        }
    })
}

const paginationData = reactive({
    pageNum: 1,
    pageSize: 10
})

const handleSizeChange = (val) =>{
    paginationData.pageSize = val
    getListData()
}

const handleCurrentChange = (val) =>{
    paginationData.pageNum = val
    getListData()
}
//请求列表数据
const getListData = () =>{
    menuList(paginationData).then(({data})=>{
        const {list,total} = data.data
        tableData.list = list
        tableData.total = total
    })
}

const formRef = ref()

//form的数据
const form = reactive({
    id:'',
    name:'',
    permissions:''
})

//树形菜单权限数据
const permissionData = ref([])

//弹窗的显示隐藏
const dialogFromVisable = ref(false)

//关闭弹窗的回调
const beforeClose = () => {
    dialogFromVisable.value = false
    //重置表单
    formRef.value.resetFields()
    //tree选择重置
    treeRef.value.setCheckedKeys(defaultKeys)
}

//选中权限
const defaultKeys = [4,5]
const treeRef = ref()

const rules = reactive({
    name:[{required:true,trigger:'blur',message:'请填写权限名称'}]
})

//表单提交
const confirm = async (formEl)=>{
    if (!formEl) return
    await formEl.validate((valid,fields)=>{
        if (valid) {
            //获取选中chexkbox数据
            const permissions =JSON.stringify(treeRef.value.getCheckedKeys())
            userSetMenu({name:form.name,permissions,id:form.id}).then(({data})=>{
                beforeClose()
                getListData()
            })
        }else{
            console.log('error submit!', fields)
        }
    })
}
</script>
<style lang="less" scoped>
.btns{
   padding: 10px 0 10px 10px;
   background-color: #fff;
}
</style>